Why is understanding Boko Haram so hard? Because the Nigerian terrorist group is led by a vicious, cunning enigma named Abubakar Shekau, a man who's been declared dead by the government at least once.

This transcript has been automatically generated and may not be 100% accurate.

... what the drama so hard to understand ... because their leader an eighty de Boer insane boring either ... and ... so ... I ... this is vocal runs leader of the wood harsher cow ... this organization can one hundred percent verified the footage ... this is him his video appearances suggest a range ... he is referred to its office and that ... is openly stated his thirst for killing saying he wants to slaughter infidels like ramps ... but he's no dummy ... he's been reported dead by Nigerian security officials numerous times only to apparently reappear and videos later ... there's a seventy million dollar bounty huge house and in the US is marked as a specially designated global terrorists ... we will ...